Wireless Sensor Network (WSN) Consists of a grouping of remote sensors that transmit data wirelessly to a receiver that is collecting data into a database. Special controls may alert the network’s manager to changes in the environment; traffic or hazardous conditions. Long-term collection of data from remote sensors can be used to establish patterns and make predictions. The use of WSNs is growing rapidly; in such applications as environmental monitoring; agriculture; military intelligence; surveillance; factory automation; home automation and traffic control.